Wrench



ARTHUR WELLS MINNEY, Ol? STOCKTUN, GALFORNA.

'WR/ENCE.

Application filed November l, 1921. Serial No. 512,063.

.Y all whom it may concern Be it known that l, lari-'run lnLLs MINnini', a citizen of the United States, and a residentor" Stockton, inthe county ot San Joaquin and State ot California, have invented certainnew and useful improvements in Virenches, of which the Yfollowing is aspecification. i

This invention relates to improvements in pipe wrenches.

Among the objects ci the invention is to provide a wrench oi the abovecharacter which is simple in construction, which is easy to manipula-te,and which is compact and exceedingly strong.

lt is also an important object in the invention that the aws oi? thewrench be shaped to operate upon pipes of different diameters andwithout lacerating or marring the pipes to any appreciable extent.

lt is a further object ci the invention that the jaws of the wrench beadapted to grip a pipe upon Athe initial movement of the wrench forturning the pipe.

Other objects, and objects relating to details oiI construction,combination and arrangement or parts will hereinafter appear in thedetailed description to follow.

rlhe invention is illustrated by way or eX- ample in the accompanyingdrawings, in which,

Figure 1 is a perspective view of the wrench constructed in. accordancewith the present invention,

Figure 2 is a view similar to Figure 1 but showing in longitudinalsection the body portion of the wrench, and

Figure 3 is a forward end eleva-tion of the wrench.

Referring to the drawings more particularly, the wrench consists in abody member B, a movable jaw J and a pivoted jaw J".

The body member B comprises an elongated portion 10 which is hollow andthe passage 11 therein being preferably squared in cross section andadapted for slidingly ac commodating the shank 14 which carries themovable jaw J. The shank le is slightly greater in thickness than the Jto form the shoulders 15. rlhe :forward face of the body portion 10 isrecessed as at 12 to permit the upward and downward movement of the jawJ and also to form the retaining ledges or projections 13 with which theshoulders 15 of the jaw shank 1li are adapted. to abut or engage2 riheforward face of the body member B rearward of the recess 12 has extendedthere trom a pair of wings 16, each of which terminates in a roundedextension 17 and be- 6o tween said extensions there is pivoted a handiegenerally indicated by the reference numeral 19, said handle havingformed upon its forward end the jaw J and its free end being reducedfrom the point 2O as shown. 65 Also the tree. end of the handle 19terminates in an eye 21, the purpose of which is to hang the wrench upona nail or the like when not in use.

The rear end of the shank 14 upon which 70 the j aw J is formedterminates in a reduced threaded portion 22, the threads being preierably ot the type shown and operatively engaging with a threadedportion 23 formed at the rear end of the member B, also the por- 7 5tion 23 of the member B is slightly enlarged as at 24, the purpose oi'which is to reintorce this portion of the member. As seen in Figures 1and 2, the wings 16 extend slightly to the rear oi' the body member B 80and are formed with a recess 25 in which the grooved nut 26 is adaptedto be disposed, said nut being` threaded upon the threaded portion 22 ofthe jaw shank 14. Also the rearwardly extending portions of the wings 16are provided with grooves as at 28 which are adapted tor receiving thefree ends 0i the spring finger 29, said spring inger being secured tothe handle 19 of the wrench by a set screw 30 and preferably in the man-90 ner shown.

ln constructing the aw J it is preferable that its gripping face bedisposed at substantially right angles to the body of the wrench andserrated to form teeth 31 as 95 shown, while the similar face of themovable jaw el is Jformed with a pair of ll-shaped notches 32 and 33,the notch 33 being of greater depth than the notch 32 and each of thenotches serrated as shown. Also it is preferable that the forward faceof the movable jaw J be rounded as at 34.

ln the use of the present wrench the slotted nut 26 is manipulated `formoving the jaw J and to bring a pipe between the pair of jaws of thewrench. Whenever a large pipe s to be turned then the jaws are broughtso that the pipe will be disposed in the larger notch 83. As is obviousby this arrangement the pipe is engaged by three serrated faces and soheld for turning. llt may be mentioned that this feature is of ad pipeis to beiturned7 then the jaws should be brought together softhat thepipe is dis# posed in the smaller notch 32.

It may be mentioned that the recess l2y of the body member B permits thefree upward and downward movement of the movable jaw J and that byproviding the shoulders Il5 upon the movable jaw and the co-operatingretaining ledges 18 in the portion l() ot'- the body member B that thegreater part of the load imposed upon the jaw J' may be taken up by lthebody member. Also it is to be pointed out that the spring Q9 serves toyielldingly restrain the pivoted jaw J" from movement which is of,advantage in preventing the wrench to release itself when operatingupon ,a pipe.

`l/Vlfiile I have shown and described the preferred form of my inventionl wish it tobe understood that ,I am aware of the fact that theconstruction, combination and ar rangement of parts may be changed bythose skilled in the art without departing` from the spirit of theinvention as indicated by the appended claims.

What ll claim is:

l. A Wrench of the` character described, comprising van ,elongatedhollow body member having a slot extending` longitudinally from itsforward end, a slidable within medica said slot, said jaw havingF ashank extendingthrough the body member, means for advancing andretracting the said jaw, a second jaw formed witl a handle, a pair oiears formed upon the body member. a see* ond jaw disposed between saidears and having a handle formed therewith7 the inner face oit saidhandle and jaw abutting the body member. and means for pivoting thesecond jaw to the body member at a point intermediate the length ot thebody member. i

2.' A wrench oil the character describedr` comprising an elongatedhollow body member havingslot extending iongitudinallp,y from itsforward end, a aw slidable within said slot said -aw having a shankextend f ing` through the body meinbenA means 'for advancing andretracting the said jaw, a second jaw formed with a handle, a pair oitears formed upon the body member, a second jaw disposed between saidears and having a handle formed tlnarewitl'l7 the inner face ot saidhandle and jaw' abutting the body member, means for 'iivoting the secondjaw to the body member at a point iutermediate the length of the bodymember, and a spring linger carried by the handle of the second jaw andengaging with the body member and adapted to resist pivotal movement ofthe second jaw.v

ARTHUR WELLS MINNEY,

